rs1114167316

Positions:

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP2PP3_ModeratePP5

The NM_001378452.1(ITPR1):​c.5504T>C​(p.Leu1835Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 33)

Consequence

ITPR1
NM_001378452.1 missense

Scores

14
4
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 7.61
Variant links:
Genes affected
ITPR1 (HGNC:6180): (inositol 1,4,5-trisphosphate receptor type 1) This gene encodes an intracellular receptor for inositol 1,4,5-trisphosphate. Upon stimulation by inositol 1,4,5-trisphosphate, this receptor mediates calcium release from the endoplasmic reticulum. Mutations in this gene cause spinocerebellar ataxia type 15, a disease associated with an heterogeneous group of cerebellar disorders. Multiple transcript variants have been identified for this gene. [provided by RefSeq, Nov 2009]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), ITPR1. . Gene score misZ: 5.5951 (greater than the threshold 3.09). Trascript score misZ: 6.2026 (greater than threshold 3.09). The gene has 44 curated pathogenic missense variants (we use a threshold of 10). The gene has 31 curated benign missense variants. GenCC has associacion of the gene with spinocerebellar ataxia type 15/16, aniridia-cerebellar ataxia-intellectual disability syndrome, spinocerebellar ataxia type 29.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.934
PP5
Variant 3-4735314-T-C is Pathogenic according to our data. Variant chr3-4735314-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 253023.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ITPR1NM_001378452.1 linkc.5504T>C p.Leu1835Pro missense_variant 44/62 ENST00000649015.2 NP_001365381.1
ITPR1NM_001168272.2 linkc.5459T>C p.Leu1820Pro missense_variant 43/61 NP_001161744.1 Q14643-2
ITPR1NM_001099952.4 linkc.5360T>C p.Leu1787Pro missense_variant 41/59 NP_001093422.2 Q14643-3B4DER3Q59H91
ITPR1NM_002222.7 linkc.5315T>C p.Leu1772Pro missense_variant 40/58 NP_002213.5 Q14643-4B4DER3B4DGH1Q59H91

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ITPR1ENST00000649015.2 linkc.5504T>C p.Leu1835Pro missense_variant 44/62 NM_001378452.1 ENSP00000497605.1 Q14643-1
ITPR1ENST00000354582.12 linkc.5480T>C p.Leu1827Pro missense_variant 44/625 ENSP00000346595.8 A0A3F2YNW8
ITPR1ENST00000648266.1 linkc.5477T>C p.Leu1826Pro missense_variant 44/62 ENSP00000498014.1 A0A3B3IU04
ITPR1ENST00000650294.1 linkc.5462T>C p.Leu1821Pro missense_variant 43/61 ENSP00000498056.1 A0A3B3ITU8
ITPR1ENST00000443694.5 linkc.5459T>C p.Leu1820Pro missense_variant 43/611 ENSP00000401671.2 Q14643-2
ITPR1ENST00000648309.1 linkc.5432T>C p.Leu1811Pro missense_variant 41/59 ENSP00000497026.1 Q14643-5
ITPR1ENST00000357086.10 linkc.5360T>C p.Leu1787Pro missense_variant 41/591 ENSP00000349597.4 Q14643-3
ITPR1ENST00000456211.8 linkc.5315T>C p.Leu1772Pro missense_variant 40/581 ENSP00000397885.2 Q14643-4
ITPR1ENST00000648038.1 linkc.3266T>C p.Leu1089Pro missense_variant 24/42 ENSP00000497872.1 A0A3B3ITQ1
ITPR1ENST00000648431.1 linkc.2804T>C p.Leu935Pro missense_variant 22/39 ENSP00000498149.1 A0A3B3IU05
ITPR1ENST00000648212.1 linkc.2411T>C p.Leu804Pro missense_variant 20/39 ENSP00000498022.1 A0A3B3IU13

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Spinocerebellar ataxia type 29 Pathogenic:1
Pathogenic, no assertion criteria providedresearchResearch Group Niklas Dahl, Uppsala UniversityAug 01, 2016We have identified a biallelic (homozygous) missense mutation in ITPR1 segregating with an autosomal recessive and early onset cerebellar syndrome. Heterozygous individuals are asymptomatic albeit with unequivocal cerebellar hypoplasia. Our findings add to the genetic complexity of Spinocerebellar ataxia (SCA) and broaden the correlations between ITPR1 variants and their clinical expression. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.51
D
BayesDel_noAF
Pathogenic
0.49
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.97
.;.;.;.;.;.;D;.;.;.;.
Eigen
Pathogenic
0.71
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Pathogenic
0.98
D;D;D;D;D;D;D;D;.;D;D
M_CAP
Pathogenic
0.76
D
MetaRNN
Pathogenic
0.93
D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Uncertain
2.8
.;.;.;.;.;.;M;.;.;.;.
PrimateAI
Pathogenic
0.91
D
PROVEAN
Pathogenic
-6.6
D;D;.;D;.;.;.;.;D;.;.
REVEL
Pathogenic
0.95
Sift
Uncertain
0.012
D;D;.;D;.;.;.;.;D;.;.
Sift4G
Pathogenic
0.0
D;D;.;D;.;.;.;.;D;.;.
Polyphen
1.0
.;.;.;.;.;.;D;.;.;.;.
Vest4
0.99
MutPred
0.71
.;.;.;.;.;.;Gain of catalytic residue at L1835 (P = 0.0317);.;.;.;.;
MVP
0.98
MPC
0.79
ClinPred
1.0
D
GERP RS
5.1
Varity_R
0.90
gMVP
0.97

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1114167316; hg19: chr3-4776998; API